kalmar/PropertyT.jl
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fix: solution[:warm] saving and loading

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Marek Kaluba 2024-02-19 18:43:17 +01:00
parent 526def226e
commit f584df4c8d
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1 changed files with 14 additions and 11 deletions
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17
scripts/utils.jl
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@ -30,17 +30,20 @@ end
function solve_in_loop(model::JuMP.Model, args...; logdir, optimizer, data) function solve_in_loop(model::JuMP.Model, args...; logdir, optimizer, data)
@info "logging to $logdir" @info "logging to $logdir"
status = JuMP.UNKNOWN_RESULT_STATUS status = JuMP.UNKNOWN_RESULT_STATUS
old_lambda = 0.0
certified = false
while status != JuMP.OPTIMAL
warm = try warm = try
solution = deserialize(joinpath(logdir, "solution.sjl")) solution = deserialize(joinpath(logdir, "solution.sjl"))
warm = solution[:warm] warm = solution[:warm]
@info "trying to warm-start model with λ=$(solution[:λ])..." @info "trying to warm-start model with λ=$(solution[:λ])..."
warm warm
catch catch e
@info "could not find warmstart or \"solution.sjl\" does not exist in $logdir:" e
nothing nothing
end end
old_lambda = 0.0
certified = false
while status != JuMP.OPTIMAL
date = now() date = now()
log_file = joinpath(logdir, "solver_$date.log") log_file = joinpath(logdir, "solver_$date.log")
@info "Current logfile is $log_file." @info "Current logfile is $log_file."
@ -54,11 +57,11 @@ function solve_in_loop(model::JuMP.Model, args...; logdir, optimizer, data)
@time PropertyT.solve(log_file, model, optimizer, warm) @time PropertyT.solve(log_file, model, optimizer, warm)
solution = get_solution(model, args...) solution = get_solution(model, args...)
solution[:warm] = warm
serialize(joinpath(logdir, "solution_$date.sjl"), solution) serialize(joinpath(logdir, "solution_$date.sjl"), solution)
serialize(joinpath(logdir, "solution.sjl"), solution) serialize(joinpath(logdir, "solution.sjl"), solution)
solution[:warm] = warm
certified, λ_cert = open(log_file; append = true) do io certified, λ_cert = open(log_file; append = true) do io
with_logger(SimpleLogger(io)) do with_logger(SimpleLogger(io)) do
return PropertyT.certify_solution( return PropertyT.certify_solution(
@ -84,7 +87,7 @@ function solve_in_loop(model::JuMP.Model, args...; logdir, optimizer, data)
rel_change = rel_change =
abs(certified_λ - old_lambda) / abs(certified_λ - old_lambda) /
(abs(certified_λ) + abs(old_lambda)) (abs(certified_λ) + abs(old_lambda))
@info "Relatie improement for λ" rel_change @info "Relative improvement for λ" rel_change
if rel_change < 1e-9 if rel_change < 1e-9
@info "No progress detected, breaking" certified_λ rel_change status @info "No progress detected, breaking" certified_λ rel_change status
return certified, certified_λ return certified, certified_λ